|
gptkbp:instanceOf
|
gptkb:chemical_compound
|
|
gptkbp:appearance
|
silvery-gray metal
|
|
gptkbp:atomicNumber
|
84
|
|
gptkbp:atomicWeight
|
[208.9824]
|
|
gptkbp:block
|
p-block
|
|
gptkbp:boilingPoint
|
962°C
|
|
gptkbp:CASNumber
|
7440-08-6
|
|
gptkbp:category
|
post-transition metal
|
|
gptkbp:crystalSystem
|
simple cubic
|
|
gptkbp:density
|
9.196 g/cm³
|
|
gptkbp:discoveredBy
|
gptkb:Marie_Curie
gptkb:Pierre_Curie
|
|
gptkbp:discoveredIn
|
1898
|
|
gptkbp:electronConfiguration
|
[Xe] 4f14 5d10 6s2 6p4
|
|
gptkbp:electronegativity
|
2.0 (Pauling scale)
|
|
gptkbp:foundIn
|
uranium ores
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
polonium
|
|
gptkbp:meltingPoint
|
254°C
|
|
gptkbp:mostStableIsotope
|
gptkb:polonium-209
gptkb:polonium-210
|
|
gptkbp:namedAfter
|
gptkb:Poland
|
|
gptkbp:oxidationStates
|
+2
+4
|
|
gptkbp:period
|
6
|
|
gptkbp:radioactive
|
true
|
|
gptkbp:relatedGroup
|
16
|
|
gptkbp:riskFactor
|
extremely toxic
highly radioactive
|
|
gptkbp:standardState
|
gptkb:stone
|
|
gptkbp:symbol
|
gptkb:Po
|
|
gptkbp:toxicity
|
true
|
|
gptkbp:uses
|
antistatic devices
heat source in space probes
|
|
gptkbp:bfsParent
|
gptkb:Pierre_Curie
|
|
gptkbp:bfsLayer
|
4
|